/*
 *   SHA-256 implementation, Mark 2
 *
 *   Copyright (c) 2010,2014 Ilya O. Levin, http://www.literatecode.com
 *
 *   Permission to use, copy, modify, and distribute this software for any
 *   purpose with or without fee is hereby granted, provided that the above
 *   copyright notice and this permission notice appear in all copies.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *   WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *   MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *   ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#ifndef SHA256_H_
#define SHA256_H_

#include <stddef.h>
#ifdef _MSC_VER
#ifndef uint8_t
typedef unsigned __int8 uint8_t;
#endif
#ifndef uint32_t
typedef unsigned __int32 uint32_t;
#endif
#else
#include <stdint.h>
#endif

#define SHA256_BYTES 32

#ifdef __cplusplus
extern "C"
{
#endif

	typedef struct
	{
		uint8_t buf[64];
		uint32_t hash[8];
		uint32_t bits[2];
		uint32_t len;
	} sha256_context;

	void sha256_init(sha256_context *ctx);
	void sha256_hash(sha256_context *ctx, const void *data, size_t len);
	void sha256_done(sha256_context *ctx, uint8_t *hash);

	void sha256(const void *data, size_t len, uint8_t *hash);

#ifdef __cplusplus
}
#endif

#endif
